408264820607 has 4 divisors (see below), whose sum is σ = 466588366416. Its totient is φ = 349941274800.

The previous prime is 408264820583. The next prime is 408264820651. The reversal of 408264820607 is 706028462804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 408264820607 - 2⁸ = 408264820351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408264829607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29161772894 + ... + 29161772907.

It is an arithmetic number, because the mean of its divisors is an integer number (116647091604).

Almost surely, 2^408264820607 is an apocalyptic number.

408264820607 is a deficient number, since it is larger than the sum of its proper divisors (58323545809).

408264820607 is an equidigital number, since it uses as much as digits as its factorization.

408264820607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58323545808.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 408264820607 in words is "four hundred eight billion, two hundred sixty-four million, eight hundred twenty thousand, six hundred seven".